*{
    margin: 0;
    padding: 0;
}
a{
    text-decoration: none;
}
.Header-warp{
    width: 100%;
    background-color: #20232a;
}
.Header{
    width: 1200px;
    line-height: 60px;
    margin: 0 auto;
}
.Header-item{
    color: #fff;
    margin-right: 50px;
}
.Header-item:hover{
    color: #61dafb;
}
.Doc{
    width: 1200px;
    display: flex;
    margin: 0 auto;
}
.Doc-left{
    width: 900px;
    height: 100px;
    background-color: beige;
}
.Doc-right{
    width: 300px;
    height: 100px;
    background-color: aquamarine;
}